Air Pump for Fish Tank Reliable Oxygen Supply: Rapidly increases dissolved oxygen in aquarium water to support live fish survival and promote steady, well oxygenated growth in a stable environment. Extended Battery Life: Long lasting operation powered by a large capacity power source with USB charging compatibility for convenient recharging. Easy to Carry: Compact and portable design with a non slip exterior for stable placement; lightweight enough for easy storage in a bag or toolbox. Ultra Quiet Operation: Optimized motor delivers continuous performance with noise levels below 35 decibels. Use scenarios Daily aquarium care: Maintain proper oxygen levels for live fish during normal tank operation. Maintenance and transport: Use on the go during tank cleaning, relocation, or when you need a portable aeration solution. Backup power during interruptions: Serve as a portable oxygen source if main power is unavailable or temporary storage is required.